Parent Directory| Name | Size | Last Modified |
|---|---|---|
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| 0001437749-23-000347-index.html | 2023-01-04 17:00:29 | |
| 0001437749-23-000347.txt | 2023-01-04 17:00:29 | |
 0001437749-23-000347-xbrl.zip | 16589 | 2023-01-04 17:00:29 |
| ex_459609.htm | 26800 | 2023-01-04 17:00:29 |
| FilingSummary.xml | 1764 | 2023-01-04 17:00:29 |
| Financial_Report.xlsx | 5707 | 2023-01-04 17:00:29 |
 image001.jpg | 5660 | 2023-01-04 17:00:29 |
| MetaLinks.json | 19940 | 2023-01-04 17:00:29 |
| R1.htm | 39867 | 2023-01-04 17:00:29 |
| report.css | 2767 | 2023-01-04 17:00:29 |
| sfe-20230101.xsd | 3594 | 2023-01-04 17:00:29 |
| sfe-20230101_def.xml | 11917 | 2023-01-04 17:00:29 |
| sfe-20230101_lab.xml | 15967 | 2023-01-04 17:00:29 |
| sfe-20230101_pre.xml | 12128 | 2023-01-04 17:00:29 |
| sfe20221229_8k.htm | 30334 | 2023-01-04 17:00:29 |
| sfe20221229_8k_htm.xml | 2652 | 2023-01-04 17:00:29 |
| Show.js | 1085 | 2023-01-04 17:00:29 |